Let’s check out incorrect grammar that’s been found in books, below :)
Please read below for the ones I’ve found, so far:
In this case, you must compare apples to apples. The comparison is between two subjects. If you change the location of the two pronouns/subjects within the sentence, could you say “Me is more popular than you?” The answer is no; therefore, this sentence needs to change “me” to “I”.
Let’s change “me” to “I”
So the person is asking who performed a specific action. This “who” is the subject, in third person (he, she, it, they). Therefore, when following it up to specifically who it was, he should use the third person (in this case, “he”).
“Him” is an object pronoun that is used as the object of a verb or preposition in a sentence. It is used to refer to a male person who is the recipient of an action or the object of a preposition.
A way that you can easily figure this out, is this: which one would you say – 1.) “Did HE do it?” or 2.) “Did HIM do it?” (Hint - the answer is “He”)… That easily resolves any previous confusion. 😉